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Registros recuperados: 100 | |
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Mees,Juliana B. R.; Gomes,Simone D.; Vilas Boas,Márcio A.; Gomes,Benedito M.; Passig,Fernando H.. |
A sequential batch reactor with suspended biomass and useful volume of 5 L was used in the removal of nutrients and organic matter in workbench scale under optimal conditions obtained by central composite rotational design (CCRD), with cycle time (CT) of 16 h (10.15 h, aerobic phase, and 4.35 h, anoxic phase) and carbon: nitrogen ratio (COD/NO2--N+NO3--N) equal to 6. Complete cycles (20), nitrification followed by denitrification, were evaluated to investigate the kinetic behavior of degradation of organic (COD) and nitrogenated (NH4+-N, NO2--N and NO3--N) matter present in the effluent from a bird slaughterhouse and industrial processing facility, as well as to evaluate the stability of the reactor using Shewhart control charts of individual measures. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrifying activity; Kinetic constants; Nutrient removal; Quality control; Processing capacity. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500013 |
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Silva,Patrícia F. Da; Dantas Neto,José; Lima,VERA L. A. DE; Santos,Delfran B. Dos; Ribeiro,Pedro H. P.. |
ABSTRACT The use of tools such as process capability index for irrigation aims to observe how this irrigation is adequate in terms of quality. The aim of the study was analyzing the Christiansen uniformity coefficient and the flow of a drip irrigation system with self-compensating emitters under water different salt concentrations, using the process capability index. The research was conducted in a greenhouse at the Federal University of Campina Grande (UFCG). The experimental design was a randomized block in a factorial 5 x 2 with three replications, the factors consisted of five levels of irrigation water salinity (CEw) (0.6, 1.5, 2.5, 3.5 and 4.5 dS m−1 at 25°C) and two running times (0 and 350 hours of operation). The Christiansen uniformity... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quality engineering; Flow; Quality control; Christiansen uniformity. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601086 |
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Paixão,Carla S. S.; Voltarelli,Murilo A.; Silva,Rouverson P. Da; Tavares,Tiago De O.; Gírio,Lucas A. Da S.. |
ABSTRACT: The intensive mechanization during the harvest operation and success of this operation depends on several factors, one of which is the length and format of the plots. The aim of this study was to evaluate the operating performance of a soybean harvester in different geometric plots shape, using as quality indicators performance parameters by means of statistical control tools of process. The experiment was conducted in March 2014 in the city of Uberaba - MG. Operational capacity was evaluated in the mechanical harvesting of soybeans in three plots: irregular, rectangular and trapezoidal. Performance evaluations of soybean harvester were made from the following parameters: displacement speed, engine rotation, cylinder rotation and concave opening.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Control charts; Grain harvester; Quality control; Glycine max (L.) Merrill. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000500961 |
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Voltarelli,Murilo A.; Paixão,Carla S. S.; Zerbato,Cristiano; Silva,Rouverson P. da; Gazzola,Jonathan. |
ABSTRACT The quality control is used for the evaluation of processes and products, and it is important to detect and reduce variability and in operations management can be applied in mechanized harvesting of sugarcane billets. In this sense, this study aimed to identify critical quality indicators and, if necessary, to develop a continuous improvement plan for harvest of sugarcane billets. For the survey and definition of critical quality indicators the FMEA (Failure Mode and Effect Analysis) was applied, after the formation of the quality technical team. Evaluations of the collected variables were through control charts of individual values and the process capability indexes. There are 8 critical quality indicators in the billets harvesting process; the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quality control; Flowchart; Agricultural mechanization; PDCA; Harvester. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000100088 |
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CARNEIRO JUNIOR, J. M.; CAVALCANTE, F. A.; BRAGA, A. P.; SANTOS, C. F. dos. |
Este estudo avaliou a qualidade sanitária, microbiológica e a composição do leite in natura em diferentes épocas do ano no Estado do Acre. Entre 2008 e 2009, 900 amostras foram coletadas em três laticínios, nos municípios de Acrelândia, Porto Acre e Rio Branco. As amostras foram analisadas para determinação da contagem de bactérias totais, contagem de células somáticas, composição do leite e teste do anel para brucelose. A contaminação microbiana foi alta e acima do limite preconizado pela legislação brasileira. Entretanto, os níveis de células somáticas no leite estavam de acordo com o estipulado pela lei. A variação da composição, da qualidade microbiológica e da contagem de células somáticas no leite foi significativa para todas as datas de amostragem,... |
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Leite in natura; Acrelândia (AC); Porto Acre (AC); Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Brucelosis bovina; Contaminación bacteriana; Control de calidad; Elaboración de leche; Enfermedades animales; Ganado de leche; Higiene de los alimentos; Ordeñar.; Produção leiteira; Controle de qualidade; Higiene de alimento; Análise microbiológica; Inspeção sanitária; Contaminação bacteriana; Doença animal; Brucelose; Ordenha; Gado leiteiro; Brucella abortus.; Dairy cattle; Milk production; Milking; Quality control; Food sanitation; Bacterial contamination; Animal diseases; Bovine brucellosis.. |
Ano: 2015 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1041211 |
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BONATO, P. S.; LANCHOTE, V. L.; DREOSSI, A. de C.. |
Tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea) is a phenylurea herbicide used in sugar cane culture for the pre- and post-emergence control of weeds [1,2]. Analysis of tebuthiuron (Figure 1) and of other phenylurea herbicides in environmental samples can be performed by HPLC [3-10], or by gas chromatography using selective detectors such as nitrogen-prosphorus detector (NPD), eletron-capture detector (ECD), or a mass spectrometer (MS) [11-16]. Although Loh et al [17] reported that the use of temperatures above 280oC permits quantitative tebuthiuron breakdown, thus permitting the analysis of the products of decomposition formed, methods based on gas chromatography usually involve a derivatization step to permit analysis of... |
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Analysis; Contamination; Residues; Calibration; Environmental impact; Groundwater; Herbicides; Quality control. |
Ano: 1999 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/13136 |
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A busca por alimentos nutritivos e seguros é hoje uma das grandes preocupações do mercado alimentício. A aquisição de hábitos saudáveis, junto a uma boa alimentação, garante, segundo pesquisas, maiores chances de uma vida melhor e mais longa. E é pensando nisso que cada vez mais pecuaristas, exportadores, proprietários de frigoríficos, de supermercados e de açougues, bem como consumidores, buscam alimentos de qualidade. Para que o exportador e o frigorífico consigam produzir maior volume de carnes de alta qualidade as mudanças precisam começar com o pecuarista. Para o mercado internacional, um dos aspectos mais observados quando se fala em qualidade de carne é a sua maciez. O pesquisador da Embrapa Pecuária Sudeste, Geraldo Cruz, explica que o produtor que... |
Tipo: Prosa Rural (INFOTECA-E) |
Palavras-chave: Controle de qualidade; Produção de carne; Meat production; Quality control. |
Ano: 2008 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1016485 |
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Registros recuperados: 100 | |
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